Jib stretching and folding device

Details Jib stretching and folding device Jib stretching and folding device

1989-06-29

1990-09-04

Basinger, Sherman

Traversing hoists

Having means facilitating assembly or disassembly

Of traversing hoist from support

212266, B66C 2342

Patent

active

049537245

ABSTRACT:
In a crane capable of folding a strut type jib along a vertical side surface of a boom and also capable of stretching the jib from such a folded condition in a so-called twisting fashion, a jib stretching and folding device includes a twist shaft for jib stretching and folding operation located below a lower member of the jib under the jib folded condition, so as to fold the jib at an upper position aside the boom. Furthermore, the twist shaft is movable toward and away from the forward end of the boom, so as to fold the jib at a position shifted to the base end of the boom. The advance condition of the twist shaft to the forward end of the boom can be fixed so as to prevent movement of the jib to the forward end of the boom.

REFERENCES:
patent: 4595108 (1986-06-01), Koizumi et al.

Affiliated with

Also associated with

Rating

Jib stretching and folding device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Jib stretching and folding device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jib stretching and folding device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-435010